Home / 303,426.20-455,192.70-103,699.64

Finding the Fourth Proportional to 303,426.20, 455,192.70 and 103,699.64

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Solution

The fourth proportional to 303,426.20, 455,192.70 and 103,699.64 is: 155,567.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,426.20 : 455,192.70 = 103,699.64 : x
  2. Step 2: Convert to fraction form
    303,426.20/455,192.70 = 103,699.64/x
  3. Step 3: Cross multiply
    303,426.20x = 455,192.70 × 103,699.64
  4. Step 4: Simplify right side
    303,426.20x = 47,203,319,120.63
  5. Step 5: Solve for x
    x = 47,203,319,120.63/303,426.20
  6. Step 6: Final answer
    x = 155,567.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.